Aerospike Health and Performance Report

Author

Aerospike TAM Team

Published

February 6, 2026

Executive Summary

This report provides a health assessment for the Aerospike cluster consisting of 5 nodes. Analysis identified 50,720,801 “Delete Not Found” events, suggesting application-side logic gaps.

NoteTAM Overview

The cluster is stable, but high DNF rates indicate unnecessary IOPS pressure. Reviewing application “blind delete” patterns is the primary recommendation.

Cluster Status Overview

Warning3.a: Config Symmetry

Detected 365 configuration drifts across the cluster.

Warning4.c: Delete Not Found

Detected 50,720,801 ‘Delete Not Found’ events across 5 nodes.

Performance and Utilization

Disk Usage % by Node

Client Connections

Observations and Remediation

3.a: Config Symmetry

Detected 365 configuration drifts across the cluster.

Recommendation: Check the Technical Details section to identify which specific parameters (e.g. memory, timeouts) differ.


4.b: Read Not Found

Detected 4,068 ‘Read Not Found’ events. This is often normal for application cache-miss workflows.

Recommendation: If the application expects all records to exist, investigate potential expiration or eviction issues.


4.c: Delete Not Found

Detected 50,720,801 ‘Delete Not Found’ events across 5 nodes.

Recommendation: This suggests the application is attempting to delete records that do not exist (Blind Deletes). Review application logic.


Appendix: All Tests Performed

Check Name Status
Hot Key Detection ✅ PASS
Service Error Skew ✅ PASS
SIndex on Flash ✅ PASS
Sprig Limit Warning ✅ PASS
Storage Deadlock Risk ✅ PASS
Config Symmetry ⚠️ WARNING
Read Not Found ⚠️ INFO
Delete Not Found ⚠️ WARNING
Disk HWM Check ✅ PASS
Memory HWM Check ✅ PASS

TAM Technical Details

Node Statistics (Sample)

node_id metric value
10.94.173.43:3000 service.heartbeat_received_foreign 353086422.0
10.94.173.40:3000 service.batch_index_timeout 0.0
10.94.173.73:3000 service.reaped_fds 0.0
10.94.173.73:3000 service.fabric_connections_closed 89.0
10.94.173.73:3000 service.batch_index_created_buffers 108.0
10.94.173.40:3000 service.heartbeat_received_foreign 180678321.0
10.94.173.73:3000 service.batch_index_delay 53782300.0
10.94.173.40:3000 service.system_free_mem_kbytes 90540524.0
10.94.173.82:3000 service.cluster_clock_skew_ms 0.0
10.94.173.82:3000 service.fabric_connections 95.0

Aerospike Health Analyzer | Version: 1.2.0 | Generated: 2026-02-06 12:24